Home / 3,481.02-5,216.79-1,918.68

Finding the Fourth Proportional to 3,481.02, 5,216.79 and 1,918.68

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Solution

The fourth proportional to 3,481.02, 5,216.79 and 1,918.68 is: 2,875.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.02 : 5,216.79 = 1,918.68 : x
  2. Step 2: Convert to fraction form
    3,481.02/5,216.79 = 1,918.68/x
  3. Step 3: Cross multiply
    3,481.02x = 5,216.79 × 1,918.68
  4. Step 4: Simplify right side
    3,481.02x = 10,009,342.15
  5. Step 5: Solve for x
    x = 10,009,342.15/3,481.02
  6. Step 6: Final answer
    x = 2,875.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.